//combat loop vs enemy warrior
//IEnumerator must be returned in cases where WaitForSeconds method is being used
IEnumerator InCombat(PlayerWarriorController enemy)
{
//keep track of first hit so the unit starts attacking as soon as it collides instead of waiting and then begining to attack
if (firstHit == false)
{
GetComponent <AudioSource>().PlayOneShot(swordClashFX, 0.1f);
}
if (firstHit == true && health > 0)
{
GetComponent <AudioSource>().PlayOneShot(swordClashFX, 0.1f);
yield return(new WaitForSeconds(attackSpeed));
}
firstHit = true;
//if this warrior dies during combat then call the DIE method
if (health <= 0)
{
AIDie();
}
//deduce health from the enemy
else if (enemy.health > 0 && animator.GetBool("inRange") == true)
{
enemy.health = enemy.health - attackDamage;
StartCoroutine(InCombat(enemy));
}
//else the enemy has been killed thus, reset the warrior
else
{
firstHit = false;
resetWarrior();
}
}
//detect arrow collisions with the following units, cant check for collisions in respectice class files (warrior, archer)
//since those already use an OnCollisionSTAY method
void OnCollisionEnter2D(Collision2D col)
{
//set arrow to isKinematic so that physics engine doesn't knock units over on impact
//destory the arrow on impact
if (col.transform.tag == "warrior")
{
Rigidbody2D arrowBody = thisArrow.GetComponent <Rigidbody2D>();
arrowBody.isKinematic = true;
PlayerWarriorController warriorObject = col.gameObject.GetComponent <PlayerWarriorController>();
warriorObject.health = warriorObject.health - AIarcherController.attackDamage;
Destroy(thisArrow);
}
if (col.transform.tag == "Archer")
{
Rigidbody2D arrowBody = thisArrow.GetComponent <Rigidbody2D>();
arrowBody.isKinematic = true;
PlayerArcherController archerObject = col.gameObject.GetComponent <PlayerArcherController>();
archerObject.health = archerObject.health - AIarcherController.attackDamage;
Destroy(thisArrow);
}
else
{
Destroy(thisArrow);
}
}
//Detects collisions on this warrior's collision box and takes action
//according to what it's colliding with
void OnCollisionStay2D(Collision2D col)
{
if (col.transform.tag == "AIwarrior")
{
colAnimator = col.transform.GetComponent <Animator> (); //get reference to the warrior's animator that is colliding with this warrior
Vector2 relativePosition = transform.InverseTransformPoint(col.transform.position);
if (relativePosition.x < 0) //check whether the AI warrior this warrior has collided with is infront (to the left) of itself
{
colAnimator.SetBool("isIdle", true);
}
}
//if this warrior has collided with an enemy warrior then call the combat routine
if (col.transform.tag == "warrior" && animator.GetBool("inRange") == false)
{
PlayerWarriorController warriorObject = col.gameObject.GetComponent <PlayerWarriorController>();
animator.SetBool("inRange", true);
animator.SetBool("isIdle", false);
StartCoroutine(InCombat(warriorObject)); //get the reference of the enemy warrior and pass it to the combat method
}
//if this warrior has collided with an enemy castle then call the castle combat routine
if (col.transform.tag == "PlayerCastle" && animator.GetBool("inRange") == false)
{
HealthBar castleObject = col.gameObject.GetComponent <HealthBar>();
animator.SetBool("inRange", true);
animator.SetBool("isIdle", false);
StartCoroutine(InCombat(castleObject)); //get the reference of the enemy castle healthbar and pass it to the combat method
}
//if this warrior has collided with an enemy worker call the combat routine
if (col.transform.tag == "Worker" && animator.GetBool("inRange") == false)
{
PlayerWorkerController workerObject = col.gameObject.GetComponent <PlayerWorkerController>();
animator.SetBool("inRange", true);
animator.SetBool("isIdle", false);
StartCoroutine(InCombat(workerObject)); //get the reference of the enemy warrior and pass it to the combat method
}
if (col.transform.tag == "Archer" && animator.GetBool("inRange") == false)
{
PlayerArcherController archerObject = col.gameObject.GetComponent <PlayerArcherController>();
animator.SetBool("inRange", true);
animator.SetBool("isIdle", false);
StartCoroutine(InCombat(archerObject)); //get the reference of the enemy warrior and pass it to the combat method
}
}
//findgameobject with an equal tag, if no such object currently exists, look for the next unit in range
void GetTarget()
{
target = GameObject.FindGameObjectWithTag("warrior");
if (target == null)
{
target = GameObject.FindGameObjectWithTag("Archer");
}
if (target == null)
{
target = GameObject.FindGameObjectWithTag("Worker");
}
if (target == null)
{
target = GameObject.FindGameObjectWithTag("PlayerCastle");
}
//check to see if the found enemy unit is in range, otherwise method falls through
if (target != null)
{
distance = Vector3.Distance(transform.position, target.transform.position);
targetFound = distance <= maxRange;
}
//if valid target found then call appropriate Shoot method with target object reference
if (targetFound == true)
{
if (target.transform.tag == "warrior")
{
PlayerWarriorController warriorObject = target.GetComponent <PlayerWarriorController>();
StartCoroutine(Shoot(warriorObject));
}
if (target.transform.tag == "Worker")
{
PlayerWorkerController workerObject = target.GetComponent <PlayerWorkerController>();
StartCoroutine(Shoot(workerObject));
}
if (target.transform.tag == "Archer")
{
PlayerArcherController archerObject = target.GetComponent <PlayerArcherController>();
StartCoroutine(Shoot(archerObject));
}
if (target.transform.tag == "PlayerCastle")
{
HealthBar castleObject = target.GetComponent <HealthBar>();
StartCoroutine(Shoot(castleObject));
}
}
}
/*-----------------------------------Overloaded Shoot methods with different parameters------------------------------------------------*/
IEnumerator Shoot(PlayerWarriorController enemyWarrior)
{
animator.SetBool("inRange", true);
//keep track of first hit so the unit starts attacking as soon as it collides instead of waiting and then begining to attack
if (firstHit == false)
{
GetComponent <AudioSource>().PlayOneShot(bowReleaseSFX, 1);
}
/*if (firstHit == true && health > 0) {
* GetComponent<AudioSource>().PlayOneShot (bowReleaseSFX, 1);
* yield return new WaitForSeconds (attackSpeed);
* }*/
firstHit = true;
//if this warrior dies during combat then call the DIE method
if (health <= 0)
{
Die();
}
else if (enemyWarrior.health > 0 && animator.GetBool("inRange") == true)
{
GetComponent <AudioSource>().PlayOneShot(bowReleaseSFX, 1);
Instantiate(_arrow, thisArcher.transform.position, Quaternion.identity);
yield return(new WaitForSeconds(attackSpeed));
StartCoroutine(Shoot(enemyWarrior));
}
//else the enemy has been killed thus, reset the warrior
else
{
firstHit = false;
animator.SetBool("inRange", false);
}
}
